Question

Suppose we have a wave with k = 0.8 m − 1 and speed 326 m/s....

Suppose we have a wave with LaTeX: k= k = 0.8 LaTeX: {\rm m}^{-1} m − 1 and speed 326 m/s. What is the wavelength in meters of this wave? Record your answer to 3 decimal places.

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Answer #1

k represents the wave vector of a plane wave

Given k=0.8m-1 v=326m/sec

k=2\prod/\lambda therefore

\lambda=2\prod/k

=(2*3.14)/0.8

=7.85m

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